Series 8 Random & Sinusoidal Vibration Test Report

MIL-STD-810H Method 514.8 (Vibration) tests the ability of equipment to survive the vibration environment of various transport modes — truck, rail, ship, aircraft. For protective cases used in helicopter, ship, and rough-road applications, this test is critical. Our Series 8 cases were tested for both random and sinusoidal vibration on all 3 axes.

Test Procedure

Random Vibration (Common for all transport)

Frequency range: 5-500 Hz
PSD level: 0.04 g²/Hz (typical ground transport profile)
Duration: 60 minutes per axis
Axis: X, Y, Z (3 axes total, 3 hours)

Sinusoidal Vibration (Helicopter profile)

Frequency range: 5-200 Hz
Amplitude: 1.5g peak (matching UH-60 helicopter interior)
Sweep rate: 1 octave/min
Axis: X, Y, Z (3 axes total, 3 sweeps per axis)

Test Results

Sample	Random vibration	Sinusoidal vibration	Functional check (post)	Pass
Unit 1	No damage	No damage	Pass	✓
Unit 2	No damage	No damage	Pass	✓
Unit 3	No damage	No damage	Pass	✓

Customer Impact

This test satisfies vibration requirements for:

Helicopter transport (military, EMS, law enforcement)
Ship/boat operations (naval, marine research)
Off-road vehicle deployment (mining, oil & gas, expedition)
Rough-road truck transport (last-mile delivery to remote sites)

Frequently Asked Questions

What is MIL-STD-810 Method 514.8?

Method 514.8 (Vibration) tests the ability of equipment to survive the vibration environment of various transport modes.

What is the test frequency range?

Random vibration 5-500 Hz, sinusoidal 5-200 Hz.

How many axes are tested?

3 axes (X, Y, Z), per the standard procedure.